Large lights have a reputation for being the thing that makes a room look like you tried too hard, and I get why. A big fixture in the wrong spot reads like a chandelier in a studio apartment, which I have actually seen, and it is not a good look. But I land firmly on the side of going bigger than feels comfortable, because the one mistake almost everyone makes is sizing a light to the ceiling instead of the room, and you end up with something that looks sensible from the doorway and useless once the furniture is in.
Here is the measuring part, because it matters more than the shape or the finish. Add the length and width of the room in feet, and that number in inches is roughly the diameter you want for a fixture over a dining table or in the center of a living room, so a twelve by fourteen room wants something in the twenty six inch range, not the eighteen inch one that looked fine on a screen. Over a table, the light should be about a foot narrower than the tabletop on each side, and hung so the bottom sits around thirty inches above the surface, lower than people expect, which is the second mistake, hanging everything too high because you're worried about banging your head on it once a year. You won't. Worry more about the ceiling height overall, an eight foot ceiling can't carry a fixture that eats two feet of vertical space before anyone sits down.
A large light sits well with plain, low furniture underneath it, a wood table, a neutral sofa, nothing else trying to be the center of attention in that sightline. It earns its place in rooms with some height and some breathing room around the walls, a dining room, an open plan kitchen and living space, an entryway with a real ceiling instead of a hallway squeeze. It also does something nice in winter, when everything else in the house goes dim by five, a large fixture throws light down and out instead of just up, which matters more than people admit until they've lived with the wrong one for a season.
If you own none, start with a pendant over a table rather than anything on the ceiling plane of a living room, it's the easiest one to get right, the easiest to swap later, and the one every other light in the house will end up getting compared to. I'd start in a warm brass or an aged bronze, something that doesn't show every fingerprint and doesn't look like a spaceship against a plain ceiling.